Since you have an embroidery machine, look for In the Hoop hand sanitizer holders. Most can be made to attach a clip to for attaching to bags, backpacks, totes, etc. I used hand sanitizer prior to the pandemic and continue to use it now. Having it hooked to my bag made access a lot easier. The website Sew4home.com has a lot of projects of all sizes. It is a free website but they ask you to sign up for their newsletter. I have been subscribed for years and never had a problem.

How about little stockings with dog biscuits in them?

That would be excellent for next December's trials! They could be different colors to designate the prize level (blue for 1st, red for 2nd, etc.) Thank you!

Great job! Those are lovely!

How about reusable / self storing grocery sacs. I plan on doing a few of these for last minute gifts. I have included a link to one that has a zipper that I think is cool
https://www.youtube.com/watch?v=JbUfsIGqwIk

Eparys, thanks for the link! I have a very old version of one of these, the wallet part is leather, and the smaller bag is made with something like parachute fabric.

Thanks again, everyone.

A couple more ideas people have come up with:

Travel bibs, to keep the Egg McMuffin off your show clothes when you leave at 0-dark-30 to get to a show.
Luggage tag, or slightly larger version, to attach emergency information to dog crates
Poop bag roll holder